# Unable to save project as a conceptual mass in revit ! Please Help!

**URL:** <https://forum.dynamobim.com/t/unable-to-save-project-as-a-conceptual-mass-in-revit-please-help/50522>\
**Category:** Revit\
**Tags:** revit, geometry, dynamo\
**Created:** [May 12, 2020, 4:55am UTC](https://forum.dynamobim.com/t/unable-to-save-project-as-a-conceptual-mass-in-revit-please-help/50522 "2020-05-12T04:55:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![anashakim07](https://avatars.discourse-cdn.com/v4/letter/a/ecccb3/32.png) [@anashakim07](https://forum.dynamobim.com/u/anashakim07)\
**Post date:** [May 12, 2020, 4:55am UTC](https://forum.dynamobim.com/t/unable-to-save-project-as-a-conceptual-mass-in-revit-please-help/50522/1 "2020-05-12T04:55:53Z")

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so i created this parametric element for a facade of a tower im designing , i want to save it as a conceotual mass so i add it to the actual tower i designed in the conceptual mass in revit but i cant seem to know how to do it  
i tried to do it as this youtube video [https://www.youtube.com/watch?v=PcGJwm2byEc&t=84s](https://www.youtube.com/watch?v=PcGJwm2byEc&t=84s) i also tried to follow a forum where he suggets using Import _Instance.ByGeometry_ node , still doesnt work!  
[https://drive.google.com/open?id=18YJiTKeeJopxhE\_ylt5DOwLhisrQh4Xz](https://drive.google.com/open?id=18YJiTKeeJopxhE_ylt5DOwLhisrQh4Xz)

when i open conceptual mass and run the dynamo script it keeps running forever and never actually runs  
please help!, thanks

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**Author:** ![Joelmick](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/joelmick/32/93148_2.png) [@Joelmick](https://forum.dynamobim.com/u/Joelmick)\
**Post date:** [May 12, 2020, 1:30pm UTC](https://forum.dynamobim.com/t/unable-to-save-project-as-a-conceptual-mass-in-revit-please-help/50522/2 "2020-05-12T13:30:02Z")

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Hi and welcome!

There are two ways you can design Conceptual masses via Dynamo.

1. Use dynamo Within a Revit project (most prefered)
2. Use Dynamo within an Conceptual Mass Family or Generic Model Family File

Number 1 is most preferable because you can reference objects from the project. You can do this with normal Dynamo nodes [2nd.dyn](https://forum.dynamobim.com/uploads/short-url/yHLnOKkLjW0qtsjEQr0a1gfb3td.dyn) (232.0 KB)

 ![Untitled](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/3/a/3ae6a4a024c77d74031c443ee18ec10f07f0c12a.png)  
Make sure you provide **Solids** in the FamilyType.ByGeometry

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<div class="post-metadata">

**Author:** ![anashakim07](https://avatars.discourse-cdn.com/v4/letter/a/ecccb3/32.png) [@anashakim07](https://forum.dynamobim.com/u/anashakim07)\
**Post date:** [May 13, 2020, 3:50am UTC](https://forum.dynamobim.com/t/unable-to-save-project-as-a-conceptual-mass-in-revit-please-help/50522/3 "2020-05-13T03:50:34Z")

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thanks alot , you’re a life saver ! much appreciated